A man and a woman who lost custody of their children due to their drug use have denied charges that they abducted their young daughters during a supervised visit in Billings.

The Billings Gazette reports 33-year-old Maria Sandoval and 34-year-old Donald Ira Stratton pleaded not guilty Friday to custodial interference during a hearing before District Judge Ingrid Gustafson.

Prosecutors say Sandoval was visiting with her daughters, ages 2 years and 4 months, when she fled with them on Oct. 26. She was arrested later that day near Vaughn but Stratton and the children weren't located until the next day in Great Falls. The children were unharmed.

Sandoval remains jailed on $20,000 bail. Stratton is being held on $15,000 bail.